Home / 99,236.15-136,915.71-56,208.80

Finding the Fourth Proportional to 99,236.15, 136,915.71 and 56,208.80

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Solution

The fourth proportional to 99,236.15, 136,915.71 and 56,208.80 is: 77,551.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,236.15 : 136,915.71 = 56,208.80 : x
  2. Step 2: Convert to fraction form
    99,236.15/136,915.71 = 56,208.80/x
  3. Step 3: Cross multiply
    99,236.15x = 136,915.71 × 56,208.80
  4. Step 4: Simplify right side
    99,236.15x = 7,695,867,075.67
  5. Step 5: Solve for x
    x = 7,695,867,075.67/99,236.15
  6. Step 6: Final answer
    x = 77,551.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.